espressif/binutils-gdb
1
0
Fork 0
mirror of https://github.com/espressif/binutils-gdb.git synced 2025-06-24 04:00:07 +08:00
Code Issues Packages Projects Releases Wiki Activity

* Crude support for examining dynamic libraries.

Browse Source 
* som.c (som_object_setup): Set DYNAMIC flag for SHL_MAGIC and
        DL_MAGIC objects.
        (som_prep_headers): Preserve the system_id for DYNAMIC objects.
        Use SHL_MAGIC as the magic number of the DYNAMIC flag is set.
        Write exec headers for DYNAMIC objects.
        (som_begin_writing): DYNAMIC objects have the same alignment
        restrictions as D_PAGED objects.
        (bfd_section_from_som_symbol): Treat DYNAMIC objects like EXEC_P
        objects.
        (object_flags): Add DYNAMIC.
This commit is contained in:
Jeff Law
1994-04-06 05:11:31 +00:00
parent 67808d3e6f
commit 65b1ef4963
2 changed files with 42 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
bfd/ChangeLog
View File

@ -1,3 +1,17 @@
Tue Apr 5 22:10:04 1994 Jeffrey A. Law (law@snake.cs.utah.edu)
* Crude support for examining dynamic libraries.
* som.c (som_object_setup): Set DYNAMIC flag for SHL_MAGIC and
DL_MAGIC objects.
(som_prep_headers): Preserve the system_id for DYNAMIC objects.
Use SHL_MAGIC as the magic number of the DYNAMIC flag is set.
Write exec headers for DYNAMIC objects.
(som_begin_writing): DYNAMIC objects have the same alignment
restrictions as D_PAGED objects.
(bfd_section_from_som_symbol): Treat DYNAMIC objects like EXEC_P
objects.
(object_flags): Add DYNAMIC.
Tue Apr 5 17:48:52 1994 Stan Shebs (shebs@andros.cygnus.com) Tue Apr 5 17:48:52 1994 Stan Shebs (shebs@andros.cygnus.com)
* i386lynx.c, sparclynx.c (NAME): Remove embedded whitespace in * i386lynx.c, sparclynx.c (NAME): Remove embedded whitespace in

43
bfd/som.c
View File

@ -1579,6 +1579,15 @@ som_object_setup (abfd, file_hdrp, aux_hdrp)
case RELOC_MAGIC: case RELOC_MAGIC:
abfd->flags |= HAS_RELOC; abfd->flags |= HAS_RELOC;
break; break;
#ifdef SHL_MAGIC
case SHL_MAGIC:
#endif
#ifdef DL_MAGIC
case DL_MAGIC:
#endif
abfd->flags |= DYNAMIC;
break;
default: default:
break; break;
} }
@ -1955,17 +1964,21 @@ som_prep_headers (abfd)
/* FIXME. This should really be conditional based on whether or not /* FIXME. This should really be conditional based on whether or not
PA1.1 instructions/registers have been used. */ PA1.1 instructions/registers have been used. */
if (abfd->flags & EXEC_P) if (abfd->flags & (EXEC_P | DYNAMIC))
file_hdr->system_id = obj_som_exec_data (abfd)->system_id; file_hdr->system_id = obj_som_exec_data (abfd)->system_id;
else else
file_hdr->system_id = CPU_PA_RISC1_0; file_hdr->system_id = CPU_PA_RISC1_0;
if (abfd->flags & EXEC_P) if (abfd->flags & (EXEC_P | DYNAMIC))
{ {
if (abfd->flags & D_PAGED) if (abfd->flags & D_PAGED)
file_hdr->a_magic = DEMAND_MAGIC; file_hdr->a_magic = DEMAND_MAGIC;
else if (abfd->flags & WP_TEXT) else if (abfd->flags & WP_TEXT)
file_hdr->a_magic = SHARE_MAGIC; file_hdr->a_magic = SHARE_MAGIC;
#ifdef SHL_MAGIC
else if (abfd->flags & DYNAMIC)
file_hdr->a_magic = SHL_MAGIC;
#endif
else else
file_hdr->a_magic = EXEC_MAGIC; file_hdr->a_magic = EXEC_MAGIC;
} }
@ -2754,7 +2767,7 @@ som_begin_writing (abfd)
we support only the copyright and version headers. */ we support only the copyright and version headers. */
obj_som_file_hdr (abfd)->aux_header_location = current_offset; obj_som_file_hdr (abfd)->aux_header_location = current_offset;
obj_som_file_hdr (abfd)->aux_header_size = 0; obj_som_file_hdr (abfd)->aux_header_size = 0;
if (abfd->flags & EXEC_P) if (abfd->flags & (EXEC_P | DYNAMIC))
{ {
/* Parts of the exec header will be filled in later, so /* Parts of the exec header will be filled in later, so
delay writing the header itself. Fill in the defaults, delay writing the header itself. Fill in the defaults,
@ -2945,7 +2958,7 @@ som_begin_writing (abfd)
building an executable, then take care to make sure all building an executable, then take care to make sure all
the alignments are correct and update the exec header. */ the alignments are correct and update the exec header. */
if (first_subspace if (first_subspace
&& (abfd->flags & EXEC_P)) && (abfd->flags & (EXEC_P | DYNAMIC)))
{ {
/* Demand paged executables have each space aligned to a /* Demand paged executables have each space aligned to a
page boundary. Sharable executables (write-protected page boundary. Sharable executables (write-protected
@ -2954,7 +2967,7 @@ som_begin_writing (abfd)
The HPUX kernel requires the text to always be page aligned The HPUX kernel requires the text to always be page aligned
within the file regardless of the executable's type. */ within the file regardless of the executable's type. */
if (abfd->flags & D_PAGED if (abfd->flags & (D_PAGED | DYNAMIC)
|| (subsection->flags & SEC_CODE) || (subsection->flags & SEC_CODE)
|| ((abfd->flags & WP_TEXT) || ((abfd->flags & WP_TEXT)
&& (subsection->flags & SEC_DATA))) && (subsection->flags & SEC_DATA)))
@ -2981,7 +2994,7 @@ som_begin_writing (abfd)
/* Only do this for the first subspace within each space. */ /* Only do this for the first subspace within each space. */
first_subspace = 0; first_subspace = 0;
} }
else if (abfd->flags & EXEC_P) else if (abfd->flags & (EXEC_P | DYNAMIC))
{ {
/* The braindamaged HPUX loader may have created a hole /* The braindamaged HPUX loader may have created a hole
between two subspaces. It is *not* sufficient to use between two subspaces. It is *not* sufficient to use
@ -3009,10 +3022,10 @@ som_begin_writing (abfd)
if (subsection->flags & SEC_LOAD) if (subsection->flags & SEC_LOAD)
{ {
/* Update the size of the code & data. */ /* Update the size of the code & data. */
if (abfd->flags & EXEC_P if (abfd->flags & (EXEC_P | DYNAMIC)
&& subsection->flags & SEC_CODE) && subsection->flags & SEC_CODE)
exec_header.exec_tsize += subsection->_cooked_size; exec_header.exec_tsize += subsection->_cooked_size;
else if (abfd->flags & EXEC_P else if (abfd->flags & (EXEC_P | DYNAMIC)
&& subsection->flags & SEC_DATA) && subsection->flags & SEC_DATA)
exec_header.exec_dsize += subsection->_cooked_size; exec_header.exec_dsize += subsection->_cooked_size;
som_section_data (subsection)->subspace_dict->file_loc_init_value som_section_data (subsection)->subspace_dict->file_loc_init_value
@ -3025,7 +3038,7 @@ som_begin_writing (abfd)
else else
{ {
/* Update the size of the bss section. */ /* Update the size of the bss section. */
if (abfd->flags & EXEC_P) if (abfd->flags & (EXEC_P | DYNAMIC))
exec_header.exec_bsize += subsection->_cooked_size; exec_header.exec_bsize += subsection->_cooked_size;
som_section_data (subsection)->subspace_dict->file_loc_init_value som_section_data (subsection)->subspace_dict->file_loc_init_value
@ -3042,7 +3055,7 @@ som_begin_writing (abfd)
If building an executable, start the unloadable stuff on its If building an executable, start the unloadable stuff on its
own page. */ own page. */
if (abfd->flags & EXEC_P) if (abfd->flags & (EXEC_P | DYNAMIC))
current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE); current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
obj_som_file_hdr (abfd)->unloadable_sp_location = current_offset; obj_som_file_hdr (abfd)->unloadable_sp_location = current_offset;
@ -3055,7 +3068,7 @@ som_begin_writing (abfd)
while (!som_is_space (section)) while (!som_is_space (section))
section = section->next; section = section->next;
if (abfd->flags & EXEC_P) if (abfd->flags & (EXEC_P | DYNAMIC))
current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE); current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
/* Now look for all its subspaces. */ /* Now look for all its subspaces. */
@ -3094,7 +3107,7 @@ som_begin_writing (abfd)
/* If building an executable, then make sure to seek to and write /* If building an executable, then make sure to seek to and write
one byte at the end of the file to make sure any necessary one byte at the end of the file to make sure any necessary
zeros are filled in. Ugh. */ zeros are filled in. Ugh. */
if (abfd->flags & EXEC_P) if (abfd->flags & (EXEC_P | DYNAMIC))
current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE); current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
if (bfd_seek (abfd, current_offset - 1, SEEK_SET) < 0) if (bfd_seek (abfd, current_offset - 1, SEEK_SET) < 0)
return false; return false;
@ -3112,7 +3125,7 @@ som_begin_writing (abfd)
obj_som_file_hdr (abfd)->som_length = current_offset; obj_som_file_hdr (abfd)->som_length = current_offset;
/* Now write the exec header. */ /* Now write the exec header. */
if (abfd->flags & EXEC_P) if (abfd->flags & (EXEC_P | DYNAMIC))
{ {
long tmp; long tmp;
@ -3585,7 +3598,7 @@ bfd_section_from_som_symbol (abfd, symbol)
/* The meaning of the symbol_info field changes for functions /* The meaning of the symbol_info field changes for functions
within executables. So only use the quick symbol_info mapping for within executables. So only use the quick symbol_info mapping for
incomplete objects and non-function symbols in executables. */ incomplete objects and non-function symbols in executables. */
if ((abfd->flags & EXEC_P) == 0 if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0
|| (symbol->symbol_type != ST_ENTRY || (symbol->symbol_type != ST_ENTRY
&& symbol->symbol_type != ST_PRI_PROG && symbol->symbol_type != ST_PRI_PROG
&& symbol->symbol_type != ST_SEC_PROG && symbol->symbol_type != ST_SEC_PROG
@ -5514,7 +5527,7 @@ bfd_target som_vec =
true, /* target headers byte order */ true, /* target headers byte order */
(HAS_RELOC | EXEC_P | /* object flags */ (HAS_RELOC | EXEC_P | /* object flags */
HAS_LINENO | HAS_DEBUG | HAS_LINENO | HAS_DEBUG |
HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED | DYNAMIC),
(SEC_CODE | SEC_DATA | SEC_ROM | SEC_HAS_CONTENTS (SEC_CODE | SEC_DATA | SEC_ROM | SEC_HAS_CONTENTS
| SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */